Jonathan kidgway



entran sfra'rns Parana' ernten..

JONATHAN RIDGVVAY, OF NEW YORK, N. Y.

STOP-COCK.

Specification forming part of Letters Patent No. 2,563, dated April 16, 1842; Ressued September 23, 184B, No. 55.

To all whom t may concern Be it known that I, J ONATHAN RIDGWAY, of the city, county, and State of New York,

have invented a new and useful Improve a cutter (b) in the following' manner: A

flat piece of metal (see Fig. 2) having' a square notch (5') in each side edge, a point (5.) projecting' 'from the center of its lower edge, which is beveled off on each side, so as to form cutters turning in opposite directions; above the notches (b) the edges are serrated to conform to the shape of the thread of a screw; this pin of metal is in serted into the core, around which the stopcock, of any of the ordinaryT forms, is cast, and thus firmly affixed thereto, having' a ring' of metal extending' entirely around where the notches (29') are; a groove can be turned in this ring` Vinto which packing' can be inserted, if necessary; t-he projecting sides of the cutter extend through to the outside to assist in the operation of cutting. A stop-cock is thus formed that will cut and screw its own way into metal or wood, the cutters beine' constructed either for one, or the other; when a branch pipe is to be at-l tached, a screw is made on the end (c) opposite to the cutter; and, for facility in turning' it, a drill brace may be temporarily attached thereto. l

By means 'of this instrument pipes or vessels of every description can be tapped, and the stop-cock inserted at one operationunder hydrostatic or other pressure, without losing' any part of their contents.

I do no-t intend in constructing; these stopcocks to confine myself to the exact method above described of forming' the cutters as they may be made to screw on, or be attached in any way, well known to practical mechanics.

What I claim as my invention and desire to secure by Letters Patent, is-

The combination of a cutter with the stopcock, or faucet made in any of the usual ways, in the manner and for the purpose herein described.

JONATHAN RIDGVVAY.

fitnesses WM. GnnnNoUGi-r, J. H. GODDARD.

[FIRST PRINTED 1913.] 

